Mutual Screw & Supply

5/16-18 X 1" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (200 / Pkg.)

5/16-18 X 1" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (200 / - Main image
$10.38 $15.04 In stock

5/16-18 X 1" Hex Machine Bolts in Steel Zinc Plated. A hex head machine bolt with a partially threaded shank per ASME B18.2.1, providing an unthreaded grip length for bolted connections through clearance holes.

  • Partially threaded shank for a smooth bearing surface in the shear plane of bolted joints
  • Hex head for wrench-driven, high-torque installation
  • Zinc plating for everyday corrosion resistance

Specifications

  • Type: Hex Machine Bolts
  • Head Style: Hex
  • Material: Steel
  • Finish: Zinc Plated
  • Thread Size: 5/16-18
  • Length: 1"
  • Thread: Partially Threaded
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Zoe G. ★★★★★

These bolts fit perfectly into my mower deck brackets where I needed that partial thread to get a clean grip. The zinc plating looks even and should hold up well against moisture.

Miles ★★★★★

I needed bolts with a precise unthreaded grip length for a heavy-duty shelving project, and these 5/16-18 x 1-inch ones fit perfectly. The zinc plating looks clean and should hold up well against moisture.

Jason ★★★★★

The partially threaded shank gave me the perfect grip length for a frame bracket, so the clamp-up felt solid without any slop. All 200 bolts in the bag were clean and the zinc plating had no chips or rough spots.